[tahunua001]

I'm surprised nobody has brought up the lucky gunner stress tests... here's the run down.
4 identical bushmaster midgrade ARs.
each was given a diet of 10,000 rounds of the same ammo.
1 got tula,
1. got wolf
1. got brown bear
1. got federal XM193 as a control.

1. xm193 had zero failures whatsoever but surprisingly ran the dirtiest.
2. wolf had a handful of failures and offered no significant advantage over the others.
3. brown bear caused the most barrel wear but also was most accurate.
4. Tula didn't make it past 500 rounds. there were dozens of failures, 2 of which required the gun dismantled and cooled before it could be fixed and placed back into action, failures occured at such a rate that the tula gun was removed from the lineup and 3 substitutes of varying models were used to burn off the rest of the tula and 2 of the 3 had multiple failures.

that speaks pretty clear to me. I doubt that steel had much to do with it but the brands that use steel are budget brands and cut costs by doing more than just substituting steel for brass. ATK brands are my favorite and I have never had a failure with any caliber, in any of my guns while using it.

EDIT: oops... I guess someone did bring this topic up. my bad...